APA-čujuhus (7. p.)
Perdue, A., & Lockwood, R. (2014). Animal cruelty and freedom of speech: When worlds collide. Purdue University Press.
Chicago-čujuhus (17. p.)
Perdue, Abigail, juo Randall Lockwood. Animal Cruelty and Freedom of Speech: When Worlds Collide. West Lafayette, Indiana: Purdue University Press, 2014.
MLA-čujuhus (9. p.)
Perdue, Abigail, juo Randall Lockwood. Animal Cruelty and Freedom of Speech: When Worlds Collide. Purdue University Press, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.